RESUMEN
Radioiodine uptake in the thyroid tissue, metastasis of differentiated thyroid cancer (DTC), and in other tissues, depends on the expression of sodium-iodide symporter (NIS). Vascular permeability, effusions, inflammation, and other mechanisms may also play a role in the accumulation of radioactive iodine. A 63-year-old woman underwent radioiodine therapy, as well as a post-therapy whole-body scan, as she was suspected of having lung metastasis from thyroid carcinoma. The scan not only showed uptake at the lung metastasis but also a faint diffuse bilateral uptake in the posterior thorax. On SPECT/CT this uptake was located in a known Elastofibroma Dorsi (ED) previously diagnosed by contrast CT and viewed in a FDG PET/CT. The radioiodine uptake in ED, especially if typical, is not a diagnostic problem in SPECT/CT study, but can be misleading in a study limited to a few planar images, particularly if the uptake occurs asymmetrically, or ED is located in a unsuspected area.
Asunto(s)
Fibroma/diagnóstico por imagen , Radioisótopos de Flúor/farmacocinética , Fluorodesoxiglucosa F18/farmacocinética , Tomografía Computarizada por Tomografía de Emisión de Positrones , Radiofármacos/farmacocinética , Tomografía Computarizada por Tomografía Computarizada de Emisión de Fotón Único , Neoplasias Torácicas/diagnóstico por imagen , Carcinoma Papilar/radioterapia , Carcinoma Papilar/secundario , Diagnóstico Diferencial , Femenino , Fibroma/metabolismo , Humanos , Radioisótopos de Yodo/farmacocinética , Radioisótopos de Yodo/uso terapéutico , Neoplasias Pulmonares/radioterapia , Neoplasias Pulmonares/secundario , Persona de Mediana Edad , Cintigrafía , Radiofármacos/uso terapéutico , Radioterapia Adyuvante , Nódulo Pulmonar Solitario/diagnóstico por imagen , Neoplasias Torácicas/metabolismo , Neoplasias Torácicas/secundario , Neoplasias de la Tiroides/radioterapia , Distribución TisularRESUMEN
AIM: To show that intussusception in children is reducible in most cases, using air. METHODS: Initially we used a barium enema to treat paediatric intussusception. Now we use an air enema. We consider the latter reduction technique to be the method of choice in the treatment of intussusception in childhood. RESULTS: Over a period of 21 years, we have treated 151 patients presenting with intussusception. In a group of 130 children treated with barium enema we managed to reduce the intussusception in 110 cases (84.6 %). We used air pressure to treat a second group of 21 children; the success rate in this group was 100 %. CONCLUSIONS: In order to avoid a surgical operation this technique must become more generally known. We are of the opinion that if the method is applied correctly, it is almost always possible to correct intussusception using air.